Door holder



c. N.- SIBLEY ETA-L DOOR HOLDER 2 Shets-Sheet 1 Filed June 27, 1944'INVENTORS I wwf vgr April 16, 1946. c. N. SIBLEY EQI'AL noon HOLDERFiled Juhe 2'7, 1944 2 Sheets-Sheet 2 INVENTORS Patented Apr. 16, 1946 qUNITED STATE noon HOLDER Clement N. Sibley, Amityville, and Fred Wiesle'ri Jamaica, N.

Application June. 27, 1944. serial No. 542,308

2 Claims. (01. 292-278) This invention relates to improvements in overihead door holders. The object of the invention is to provide atelescopic door holder in which all the operating parts are concealedand which is free from all projecting arms, handles, brackets and likeparts, which constitute elements of construction in prior devices.

One object is to provide a door holder which may be so mounted and is soarranged that its outer free end may be secured relatively close to thefree edge of the door whereby to provide maximum holdirigpower with theparts of the door holder in a single straight line andwhereby toeliminate strains on the door hinges. Still another feature relates tothe ease with which the door holder may be so mounted so as to bepractically invisible. Another distinguishing feature is the very simplemeans whereby the holding lock or catch may be controlled to functionactively or inactively. Other novel features will be'pointed out as thisspecification proceeds.

Accordingly the invention is embodied in an overhead door holderarranged and constructed as hereinafter set forth and as illustrated inthe accompanying drawings in which Fig. 1 is a sectional view of thedoor holder with parts broken away and showing the operating mechanismin non-holding position.

Fig. 2 is a similar view showing the holder in locked or door holdingposition.

Fig. 3 is a similar view but shows the parts in position at the momentof release of the holding means.

Fig. 4 is a side view with parts in section looking in the direction ofthe arrow 4 in Fig. 1.

Fig. 5 shows the door holder applied to a door with the latter held inopen position.

Fig. 6 is a perspective view showing the door holder mounted as aconcealed door holder.

The door holder according to this invention comprises two arms mountedin sliding telescopic relation. The outer arm [0 slides within the innerarm II. The outer arm is adapted to be pivoted on the door 12 near thefree edge thereof by means of a suitable bracket or mounting I3, Fig. 5.The inner arm II is pivoted to the overhead frame of the door casing Mby means of another suitable pivotal mounting 15. The two arms arepreferably of rectangular cross section.

The inner arm ll carries a slidably mounted controller [6 operable fromthe outside of the holder by a thumb piece I! which slides in a cut out[8 in the arm so that the controller may be moved manually into one oftwo distinct positions to control the operation of the holding catch orhook. The arm II also carries a fixed catch 19 secured by a screw 20.

'The outer arm lllhas a closed end 2| which receives a block 22. Thelatter contains a cushioning spring 23 which acts against the heel 24 ofa hooked trigger 25. 1 Another spring 26 engages the heel on the otherside thereof. The other end of the spring 26 is held in position by anabutment 21 which is held by the spring against the edge '28 of a cutout 29 in the outer arm.

I The action of the two springs is such that the hook 30 of the triggeris forced outwards through an opening 3| in the outer arm II] so thatsaid hook will automatically engage the catch 19 when the door is to belocked in open position as will be explained later. The spring 23 servestakes place.

to cushion and ease the operation of the trigger and also serves as apivotal support.

The movement of the trigger outwardly through regulated by means of anadjustment 32 which is movably supported on an adjusting screw 33. Theadjustment engages the inclined surface of the hook and acts as a stop.When the adjustment islowered on the screw 33 theoutward movement of thetrigger is correspondingly lessened.

When the door swings open the inner arm ll swings outward about itsfixed pivot 35 and the pivot 36 of the outer arm I!) swings outward. Theouter arm then slides out from the inner arm. When the door closes thereverse action Thus while the door swings freely back and forth theouter arm slides in and out of the inner arm. The positions of the partsin the door holding. mechanism during the free movements of the door areshown in Fig. 1. In this view the controller I6 is moved to engage thecatch I9 so that, as the arm I0 slides outward in the arm II, the hook30 cannot engage the catch. During such outward sliding movement of thearm II] the catch merely slides in under the catch I9 and remainsslightly depressed as it moves further under the catch and under thecontroller [6. The parts are so arranged, the extreme distance betweenthe pivots 35 and 36 being fixed, that the arm 10 never slidescompletely out from the arm I l and the hook 30 never passes outwardlyfrom under the controller 16. During the telescoping movements of thetwo arms the parts are in the positions shown in Fig. 1, the hook 311having been moved outward through the opening 3| as it passes from underthe catch.

When the door is to be held in open position, the controller [6 is movedoutward from the position in Fig. 1 to the position in Fig. 2 therebyproviding a space between the controller and the catch I9. Hence, whenthe hook 30 reaches this point it will snap up in front of the catch.Now the arm I cannot be moved into the arm I l and the door. is. firmlylocked and, held in open position, Fig. 5. 1 r I In order to close thedoor after the door holder has been locked pressure is applied to the.outer edge of the door.

Thus the distance be tween the pivots 35 and 36 is slightly increasedand the arm l0 pulled out furthenirom the arm v The hook 30 isthereby'moved awa'yirom" the catch l9 and moves in under the controllerl6, the latter being then in the .position'shown in ;i1

Fig. 2. It is now possible to move the controller back against the catchl9 as shown in Fig. 3"a'nd' close the space where, the hook wouldotherwise engage the catch. As the pressure upon the door is released,the doorgwill swing back and close-andtheholder will telescope. It willbe noted that the spring 26 is 'a' very strong spring so that normal-r'unning againstthe door'or normal pushing against it is not sufiicientto compress the spring so that the holder maybe accidentally unlockedand the door closed when it should be held open. It is also to be notedthat eventhough the door should' be accidentally pushed open beyond itsnormal open position the door holder will not be unlocked because thecontroller will in such case'not be in position to prevent the hook fromengaging the catch as soon as such accidental pressure is released. Theholder is unlocked only'by causing the outer arm to move slightlyoutwardbeyondlocked position and then move theco'ntroller to engage the catch.It will be observed that this operation is very simple and does notrequire the turning of handles, forcible unlocking of bolts or otherparts such as is required with many prior devices. I

Normally the controllerwill be'in the position shown in Fig. 1 and thedoor holder will then swing freely with the movements of the door. Thecontroller may at any time be moved away from the catch and then thedoor holderwill lock automatically when the door is fully opened.Unlocking of the door holder is done by extendingthe holder slightly todisengage 'the hook from the catch and then move the controller toprevent reengagement. p i

The adjustment 32 regulates the movement of the hook across the arm 10.When the holder is fully extended the screw 33 is accessible for slam.This is an obvious advantage in case of emergencies.

The invention therefor includes means to unlock the holder by applying aslight i excess pressure to extend the holder and then aoperate thecontroller, as well as means for 15- iorcibly breaking the look byabnormal force in the opposite direction.

Fig. 6 illustrates how the door holder may be mounted as a concealeddoor holder. In this case the pivot 35 of the inner arm is moved nearerthe edge of the door frame M. The door is mortised as at 40 and thepivot 36 placed in the mortise. When the door is closed the holder willtelescope within the mortise 40. It will not be'visible from the outsideof the door and from the inside the holder will appear merely as acountersunk or set-in piece or bar.

The door holder as herein disclosed is adapted tofit all sizes of doors.Because of the absence of inter-pivoted arms or links which includetoggle action such as is common in many prior devices there isno strainon the door hinges. The door holder has a, pleasing inconspicuousappearance. All the'operating parts are enclosed and thus protectedagainst dirt. The only manual operation required besides applyingpressure upon the door is the easy movement of the controller,

We claim: 1

1. A door holder comprising a pair of hollow arms in telescopic slidablerelation, a fixed catch within one of said arms, a movable triggerwithin the other arm adapted to engage said fixed catch to lock the saidtwo arms in extended door holding positionga movable controller withinthe said one arm, a thumb piece for positioning said controller tonormally prevent the said trigger from engaging the fixed catch and forpositioning said controller to permit said trigger to engage saidcatchto lock-the said arms in extended door holding position.

2. A door holder according to claim 1 including means for regulating themovement of the movable trigger. W V

l CLEMENT N. SIBLEY.

FRED WIESLER.

